Hi Krzysztof,
On 2017-08-03 21:20, Krzysztof Kozlowski wrote:
On Thu, Aug 03, 2017 at 09:45:23AM +0200, Maciej Purski wrote:
This patch adds HDMI and Sil9234 MHL converter to Trats2 board.
Just "Add HDMI...", without this patch.
Except few minor nitpicks below, looks good. After fixing I will take it
once bindings got accepted.
Based on previous work by:
Tomasz Stanislawski <t.stanislaws@xxxxxxxxxxx>
Signed-off-by: Maciej Purski <m.purski@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos4412-trats2.dts | 93 +++++++++++++++++++++++++++++++++
1 file changed, 93 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 35e9b94..39940f6 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -97,6 +97,16 @@
gpio = <&gpj0 5 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
+
+ vsil: voltage-regulator-vsil {
+ compatible = "regulator-fixed";
+ regulator-name = "HDMI_5V";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&gpl0 4 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&buck7_reg>;
I think the supply is V_BAT, not buck7.
Well, according to the the schematic, VSIL is derived from VCC_SUB_2.0V
(buck7) by the RP114K121D-TR chip, which is controlled by gpl0-4 (HDMI_EN)
pin.
The only thing that has to be fixed is the voltage value for that regulator.
VSIL is 1.2V and regulator-name should be adjusted too. The HDMI_V5 name
and voltage value seems to be copy/paste error done long time ago...
+ };
};
gpio-keys {
@@ -229,6 +239,34 @@
};
};
+ i2c-mhl {
+ compatible = "i2c-gpio";
+ gpios = <&gpf0 4 GPIO_ACTIVE_HIGH &gpf0 6 GPIO_ACTIVE_HIGH>;
+ i2c-gpio,delay-us = <100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-0 = <&i2c_mhl_bus>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ sii9234: sii9234@39 {
The name of node should be rather generic (ePAPR: "The name of a node
should be somewhat generic, reflecting the function of the device and
not its precise programming model").
So maybe "sii9234: hdmi-bridge@39"?
+ compatible = "sil,sii9234";
+ vcc-supply = <&vsil>;
+ reset-gpios = <&gpf3 4 GPIO_ACTIVE_HIGH>;
+ interrupt-parent = <&gpf3>;
+ interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x39>;
+
+
One empty line instead of two.
+ port {
+ mhl_to_hdmi: endpoint {
+ remote-endpoint = <&hdmi_to_mhl>;
+ };
+ };
+ };
+ };
+
camera: camera {
pinctrl-0 = <&cam_port_a_clk_active &cam_port_b_clk_active>;
pinctrl-names = "default";
@@ -522,6 +560,31 @@
status = "okay";
};
+&hdmi {
+ hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_hpd>;
+ hdmi-en-supply = <&vsil>;
+ vdd-supply = <&ldo3_reg>;
+ vdd_osc-supply = <&ldo4_reg>;
+ vdd_pll-supply = <&ldo3_reg>;
+ ddc = <&i2c_5>;
+ status = "okay";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ reg = <1>;
+ hdmi_to_mhl: endpoint {
+ remote-endpoint = <&mhl_to_hdmi>;
+ };
+ };
+ };
+
Unnecessary empty line.
+};
+
&hsotg {
vusb_d-supply = <&ldo15_reg>;
vusb_a-supply = <&ldo12_reg>;
@@ -600,6 +663,11 @@
};
};
+
+&i2c_5 {
+ status = "okay";
+};
Could you describe more what is on i2c_5 and i2c_8? Is it relevant to
this patch?
Yes. i2c_5 is used for HDMI DDC and i2c_8 is used for HDMI_PHY. None of
the other exynos*.dts, which enable HDMI has any comment on them...
+
&i2c_7 {
samsung,i2c-sda-delay = <100>;
samsung,i2c-slave-addr = <0x10>;
@@ -894,12 +962,20 @@
};
};
+&i2c_8 {
+ status = "okay";
+};
+
&i2s0 {
pinctrl-0 = <&i2s0_bus>;
pinctrl-names = "default";
status = "okay";
};
+&mixer {
+ status = "okay";
+};
+
&mshc_0 {
num-slots = <1>;
broken-cd;
@@ -926,6 +1002,18 @@
pinctrl-names = "default";
pinctrl-0 = <&sleep0>;
+ mhl_int: mhl-int {
+ samsung,pins = "gpf3-5";
+ samsung,pin-pud = <0>;
Please use defines from dt-bindings/pinctrl/samsung.h
+ };
+
+ i2c_mhl_bus: i2c-mhl-bus {
+ samsung,pins = "gpf0-4", "gpf0-6";
+ samsung,pin-function = <2>;
+ samsung,pin-pud = <1>;
+ samsung,pin-drv = <0>;
The same.
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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